CN201944316U - High temperature and high pressure wedge brake valve - Google Patents
High temperature and high pressure wedge brake valve Download PDFInfo
- Publication number
- CN201944316U CN201944316U CN2011200977259U CN201120097725U CN201944316U CN 201944316 U CN201944316 U CN 201944316U CN 2011200977259 U CN2011200977259 U CN 2011200977259U CN 201120097725 U CN201120097725 U CN 201120097725U CN 201944316 U CN201944316 U CN 201944316U
- Authority
- CN
- China
- Prior art keywords
- valve
- flashboard
- plate
- high temperature
- high pressure
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model provides a high temperature and high pressure wedge brake valve, which includes a valve body, a valve seat, a brake plate and a valve stem. The brake plate is of wedge-like cake form. The brake plate surface is welded with the end surface sealing layer, the center position of the indent, and the side is equipped with U-shaped grooves along the circumference. The upper is arranged with a slot for mounting the stem, supporting ribs and guide grooves, which are all milled off along the symmetry plane of the valve plate. The upper and lower ends of guide groves are equipped with chamfers. The bottom of the described stem and the brake plate compose pressure release valve. The outlet of the pressure release valve is connected by the pressure release hole and the valve exit, the inlet of the pressure release valve is connected by the impulse hole and the valve entrance. The utility model forms the pressure release valve between the bottom of the stem and the brake plate. When the valve opens, the opening torque of the valve plate can be reduced, the wear of the sealing surface can be reduced, and the valve sealing performance can be improved. The valve plate equips with chamfers at the upper and the lower ends of the guide groove, making the plate to steadily move, avoiding seizure phenomenon, and ensuring the stable brake valve operation and good sealing effect.
Description
Technical field
The utility model relates to valve field, relates in particular to a kind of High Temperature High Pressure Wedge gate valve.
Background technique
There is following defective in existing gate valve: 1. in the valve opening process, because valve plate import and export side pressure difference is bigger, make valve opening moment very big, also bigger to the wearing and tearing between the sealing surface, sealability descends very fast.Gate valve in use because the flashboard guiding groove is when valve body guide rail muscle moves, guide rail muscle and guiding groove can be killed phenomenon once in a while, valve plate can't open and close, causes flashboard malfunctioning or sealing effect is not good.
Summary of the invention
In order to overcome above-mentioned defective, the purpose of this utility model provides and a kind ofly opens that moment is little, the wearing and tearing between the sealing surface are little, the High Temperature High Pressure Wedge gate valve of gate valve stable performance, good sealing effect.
For achieving the above object, the technical solution of the utility model is:
A kind of High Temperature High Pressure Wedge gate valve, it comprises valve body, valve seat, flashboard and valve rod, described flashboard is the wedge shape round pie, built-up welding has sealing layer on the flashboard sealing surface, end face central position indent, the side is provided with U-groove bevel along circumference, it is all disconnected along valve plate symmetry facing cut that the top is provided with valve rod mounting groove, supporting rib and guiding groove, guiding groove two ends slot-open-section up and down is equipped with chamfering, the underpart of described valve rod and flashboard constitute Decompression valves, the outlet of Decompression valves is by relief hole and valve export channel connection, and the import of Decompression valves is by tracting pressuring hole and valve inlet channel connection.
Described guiding groove takes the shape of the letter U, and the bottom empties, the notch inboard of guiding groove upper/lower terminal, and direction is provided with ordinate and horizontal chamfering simultaneously in groove.
Described chamfering length is the 15-25 millimeter, and angle is the 15-25 degree.
Described valve rod mounting groove, supporting rib and guiding groove all mill disconnected gap size 3-5 millimeter along the flashboard symmetry.
The usefulness of technique scheme is:
The utility model is formed Decompression valves between valve rod underpart and flashboard, when valve opening, reduce the unlatching moment of valve plate, reduces the wearing and tearing of sealing surface, improves the sealability of valve; Valve plate is provided with chamfering at the upper/lower terminal slot-open-section of guiding groove, makes flashboard operate steadily, and can not kill phenomenon, guarantees that gate valve is stable, good sealing effect.
Below in conjunction with the drawings and specific embodiments the utility model is further described.
Description of drawings
Fig. 1 is this novel schematic representation;
Fig. 2 is the schematic representation of valve plate.
Embodiment
Embodiment
As Fig. 1, a kind of High Temperature High Pressure Wedge gate valve shown in 2, it comprises valve body 1, valve seat 2, flashboard 3 and valve rod 4, described flashboard 3 is the wedge shape round pie, built-up welding has sealing layer 5 on flashboard 3 sealing surfaces, end face central position indent, the side is provided with U-groove bevel along circumference, the top is provided with valve rod mounting groove 6, be provided with supporting rib 7 in the U-groove bevel of bottom, be respectively equipped with left guiding groove 8 and right guiding groove 9 in the U-groove bevel of the left and right sides, left and right sides guiding groove takes the shape of the letter U and the bottom is emptied, on the guiding groove, the notch inboard at following two ends, promptly with the suiting on the angle of valve body guide rail muscle, direction is provided with ordinate and horizontal chamfering simultaneously in groove.Chamfering length is the 15-25 millimeter, and angle is the 15-25 degree.Valve rod mounting groove, supporting rib and guiding groove all mill disconnected gap size 3-5 millimeter along the flashboard symmetry, the underpart of described valve rod 4 and flashboard 3 constitute Decompression valves, the outlet of Decompression valves is by relief hole 10 and valve export channel connection, and the import of Decompression valves is by tracting pressuring hole 11 and valve inlet channel connection.
Working principle: the underpart of valve rod and flashboard constitute Decompression valves, and the outlet of Decompression valves is by relief hole and valve export channel connection, and the import of Decompression valves is by tracting pressuring hole and valve inlet channel connection.During valve opening, carry on the valve rod, sealing surface on its sealing surface and the flashboard breaks away from, the Nikon channel media that continues is by tracting pressuring hole, relief hole road outlet passage, tracting pressuring hole is connected by the annular pass on the flashboard with relief hole, thereby reduce the unlatching moment of valve plate, reduce the wearing and tearing of sealing surface, improve the sealability of valve.
Valve plate is provided with chamfering at the upper/lower terminal slot-open-section of guiding groove, chamfering length 15-25 millimeter, and angle 15-25 degree, the phase cross surface adopts circular arc to seamlessly transit, and makes flashboard operate steadily, and can not kill phenomenon, guarantees that gate valve is stable, good sealing effect.
Claims (4)
1. High Temperature High Pressure Wedge gate valve, it is characterized in that: it comprises valve body, valve seat, flashboard and valve rod, described flashboard is the wedge shape round pie, built-up welding has sealing layer on the flashboard sealing surface, end face central position indent, the side is provided with U-groove bevel along circumference, the top is provided with the valve rod mounting groove, supporting rib and guiding groove are all disconnected along valve plate symmetry facing cut, guiding groove two ends slot-open-section up and down is equipped with chamfering, the underpart of described valve rod and flashboard constitute Decompression valves, the outlet of Decompression valves is by relief hole and valve export channel connection, and the import of Decompression valves is by tracting pressuring hole and valve inlet channel connection.
2. a kind of High Temperature High Pressure Wedge gate valve as claimed in claim 1, it is characterized in that: described guiding groove takes the shape of the letter U, and the bottom empties, the notch inboard of guiding groove upper/lower terminal, direction is provided with ordinate and horizontal chamfering simultaneously in groove.
3. a kind of High Temperature High Pressure Wedge gate valve as claimed in claim 2 is characterized in that: described chamfering length is the 15-25 millimeter, and angle is the 15-25 degree.
4. a kind of High Temperature High Pressure Wedge gate valve as claimed in claim 1 is characterized in that: described valve rod mounting groove, supporting rib and guiding groove all mill disconnected gap size 3-5 millimeter along the flashboard symmetry.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200977259U CN201944316U (en) | 2011-04-06 | 2011-04-06 | High temperature and high pressure wedge brake valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200977259U CN201944316U (en) | 2011-04-06 | 2011-04-06 | High temperature and high pressure wedge brake valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201944316U true CN201944316U (en) | 2011-08-24 |
Family
ID=44471660
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200977259U Expired - Fee Related CN201944316U (en) | 2011-04-06 | 2011-04-06 | High temperature and high pressure wedge brake valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201944316U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103115159A (en) * | 2013-01-16 | 2013-05-22 | 许宏伟 | Gate valve |
| CN104565411A (en) * | 2014-12-19 | 2015-04-29 | 成都迅德科技有限公司 | Flat gate valve |
-
2011
- 2011-04-06 CN CN2011200977259U patent/CN201944316U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103115159A (en) * | 2013-01-16 | 2013-05-22 | 许宏伟 | Gate valve |
| CN104565411A (en) * | 2014-12-19 | 2015-04-29 | 成都迅德科技有限公司 | Flat gate valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110824 Termination date: 20180406 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |